apans
nounEtymology From arsonic + phenyl + azo- + naphthalene + sulfonic, from disodium salt of 4-[(2-arsonophenyl)azo]-3-hydroxy-2,7-naphthalenedisulfonic acid.
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Chemistry, Natural sciences, Organic chemistry, Physical sciences (acronym) Synonym of thorin (C₁₆H₁₁AsN₂O₁₀S₂·Na₂)